Refrigerator



D, s. HEFFRON.

Refrigerator. No. 29,487. Patented Aug. 7, 1860.

N. PETERS, Photmegmpher. washington, D. c.

UN STATES PATENT OFFICE.

DANIEL S. I-IEFFRON, OF UTICA, NEW YORK.

REFRIGERATOR.

vSpecification lof Letters Patent N o. 29,487, dated August 7, 1860.

which the air cooled in the ice box is carried p around the provision chamber, and not permitted to enter such chamber, to deposit the moisture it carries mechanically from the ice, in the chamber; second, the construction and Vuse of an air drying and cooling chamber, for

drying and cooling another current of air to ventilate said provision chamber; third, the construction and use of a sloping top for the provision chamber to carry down to one side, any moisture which may condense on such top.

I do hereby declare that the following is a full and exact description of said improved refrigerator, reference being had to the accompanying drawings, making a part of this specification, in which Figure l is a perspective view of said refrigerator; Fig. 2, a like perspective view of the inside case or lining; Fig. 3 is a sectional view from the front to the rear and Fig. 4 a longitudinal sectional view.

A, A, is the outer case; B B B, the inner case or lining; C, the lid; B1 its lining; D, the door and B2 its lining; E, the ice box; B3 the sides and B1 the bottom thereof.

F1 and F2 are registers for the ingress of air, and F3 and F 1 like registers for the egress of air.

G1 and G2 are openings throngh the ends of the ice box, for the passage of air into and out of the ice box.

H1, H2 and H3 are the vacant spaces between the outer and inner cases at the ends and the bottom.

I1, I2, I3 and I* are the spaces between the outer and inner case at the front and back and between the door and its lining and the lid and its lining.

K is the air drying chamber; L the provision chamber; M, the sloping cover of such chamber.

N is a tube for conducting the air from K to L.

O, O, are openings at the bottom and top of L for the passage of the air out of the provision chamber.

P is a water tank; Q, a tube connected therewith for drawing ofll thev water from the tank and R a faucet.

S, S, are the projecting `ends of the .front and rear plates Vof the inner case, and T, T, are the like projections and Vcurves of the bottom plate.

U, U, are two flanges for preventing Vthe air which passes through registers F1 or F2 from descending in the space H2.

V is a flange or shoulder on the top of the inner case to close the spaces between the 'outer and inner cases in that direction.

W, W, `are holes in the bottom of the ice box for draining the ice box.

X is an opening through the inner case into the air drying chamber K, corresponding with the register F2, and Y is kan opening at the bottom of the air drying chamber for draining it.

The refrigerator is made in two parts: the outer one A, A, of wood, vand the inner lone B B B, of zinc, vulcanized iron, :or other suitable material; and rthe iid C and the .door

D -should be vlined with the same material.

The inside case should be so much less in size than the outer case as to allow a space all around between them of about one inch; and such inner case is made so as to separate the spaces in front and rear from the sides and bottom spaces. This may be done by extending the front and rear plates and the bottom plate to the outside case, or by placing strips of wood or other material, at the front and back and upright at the four corners.

The top of the spaces in the ice box must be closed and also that at the door. This may be done by bending out the inner case or otherwise. The entire space in the rear I1, also the like space in front I2, as well as the space between the lid and lining I3 and the door and lining I4, are filled with charcoal dust or other suitable nonconducting material. The spaces between the ends and bottom H1, H2 and H3, are left Vacant for the passage of the cooled air.

The ice box is at the top. Its sides are the sides of the inner case and has a series of holes W, W, for draining the ice as it melts into the tank P. At each end vof E are openings G1 and G2 through the inner case, G1 corresponding with the register F1, and G2, at the opposite end permits the air which has been cooled by the ice to pass into the spaces H1, H2 and H3.

Directly under the ice box is the air drying chamber K. It is formed by extending a plate of metal in a sloping direction from the bottom plate of the ice box. Into K is an opening X, Which corresponds With register F2, and at the opposite side of K is the tube N, which passes into the provision chamber and through which the air, after being cooled and dried in said air chamber K, by the condensation of its moisture upon the bottom of the ice box E, passes.

Directly under the air-drying chamber K and parallel With its under side, is the sloping cover of the provision chamber, formed of sheet zinc or sheet metal. It extends from the front of the inner' case to the rear, and receives on its upper side the Water Which drains from the ice box, or all is condensed in the air drying chamber through the opening Y.

The operation of the refrigerator is as follows: Air passes through the register F1 and opening G1 into the ice box, and When its temperature has been reduced by the ice, and consequently its density increased, it Will pass through G2 into H3L and then into H2, and as it has by this time received a part of the higher temperature of the provision chamber and imparted thereto a portion of its cold, it then rises in H3 and may be allowed to pass out at the registers F4 or F3.

If a' rapid motion of the air is desired, F4 should be opened, and if a slower motion F3, and it may be Wholly stoppedby closing both F3 and F4. None of this air is suffered to enter the provision chamber to deposit any of its moisture therein; but air passes into the air drying chamber K through F 2 and the opening X, When its temperature is reduced and its moisture condensed by the cold bottom of the ice box, and When its density is thus increased, it Will descend through the tube N into the provision chamber, When after its temperature has been partially restored by the heat of the provisions therein it Will pass through the openings O, O, into the space H3 and through the register F3 or F4 and this current of air may be regulated or stopped in the same manner as the current of air through the ice box.

The moisture of the provision chamber Will condense in the top. If it is lat, it Will fall Wet on the provisions; but by making it With a backward slope, it carries olf all such moisture to the side, Where it may be collected in any proper manner and conveyed out of the provision chamber.

l/Vhat I claim is- The combinationand arrangement of thel Witnesses:

EZRA M. BRmsEY, M. M. JONES. 

